Electronic structure and surface morphology of [6,6]-phenyl-C 71-butyric acid methyl ester films

Ayumi Nogimura; Kouki Akaike; Rie Nakanishi; Ritsuko Eguchi; Kaname Kanai

doi:10.1016/j.orgel.2013.09.031

Electronic structure and surface morphology of [6,6]-phenyl-C ₇₁-butyric acid methyl ester films

Ayumi Nogimura, Kouki Akaike, Rie Nakanishi, Ritsuko Eguchi, Kaname Kanai

Research Institute for Interdisciplinary Science

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

We investigate the electronic structure of [6,6]-phenyl-C ₇₁-butyric acid methyl ester (PC₇₀BM) films by ultraviolet photoelectron and inverse photoemission spectroscopy. We discuss the electronic structure of PC₇₀BM in comparison with C₇₀ and [6,6]-phenyl-C₆₁-butyric acid methyl ester (PC₆₀BM). The molecular orbitals around the energy gap of PC₇₀BM are broadly distributed due to the low symmetry of the molecular structure. Consequently, the energy gap of PC₇₀BM is smaller than that of C₇₀ and PC₆₀BM. The film deposition method affects the polarization energy between the PC₇₀BM molecules, and thus affects the electronic structure of the films.

Original language	English
Pages (from-to)	3222-3227
Number of pages	6
Journal	Organic Electronics
Volume	14
Issue number	12
DOIs	https://doi.org/10.1016/j.orgel.2013.09.031
Publication status	Published - 2013

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Chemistry(all)
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

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10.1016/j.orgel.2013.09.031

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title = "Electronic structure and surface morphology of [6,6]-phenyl-C 71-butyric acid methyl ester films",

abstract = "We investigate the electronic structure of [6,6]-phenyl-C 71-butyric acid methyl ester (PC70BM) films by ultraviolet photoelectron and inverse photoemission spectroscopy. We discuss the electronic structure of PC70BM in comparison with C70 and [6,6]-phenyl-C61-butyric acid methyl ester (PC60BM). The molecular orbitals around the energy gap of PC70BM are broadly distributed due to the low symmetry of the molecular structure. Consequently, the energy gap of PC70BM is smaller than that of C70 and PC60BM. The film deposition method affects the polarization energy between the PC70BM molecules, and thus affects the electronic structure of the films.",

author = "Ayumi Nogimura and Kouki Akaike and Rie Nakanishi and Ritsuko Eguchi and Kaname Kanai",

note = "Funding Information: This work was supported by a Grant-in-Aid for Scientific Research (Grant No. 24350013 ) from the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT).",

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language = "English",

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T1 - Electronic structure and surface morphology of [6,6]-phenyl-C 71-butyric acid methyl ester films

AU - Nogimura, Ayumi

AU - Akaike, Kouki

AU - Nakanishi, Rie

AU - Eguchi, Ritsuko

AU - Kanai, Kaname

N1 - Funding Information: This work was supported by a Grant-in-Aid for Scientific Research (Grant No. 24350013 ) from the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT).

PY - 2013

Y1 - 2013

N2 - We investigate the electronic structure of [6,6]-phenyl-C 71-butyric acid methyl ester (PC70BM) films by ultraviolet photoelectron and inverse photoemission spectroscopy. We discuss the electronic structure of PC70BM in comparison with C70 and [6,6]-phenyl-C61-butyric acid methyl ester (PC60BM). The molecular orbitals around the energy gap of PC70BM are broadly distributed due to the low symmetry of the molecular structure. Consequently, the energy gap of PC70BM is smaller than that of C70 and PC60BM. The film deposition method affects the polarization energy between the PC70BM molecules, and thus affects the electronic structure of the films.

AB - We investigate the electronic structure of [6,6]-phenyl-C 71-butyric acid methyl ester (PC70BM) films by ultraviolet photoelectron and inverse photoemission spectroscopy. We discuss the electronic structure of PC70BM in comparison with C70 and [6,6]-phenyl-C61-butyric acid methyl ester (PC60BM). The molecular orbitals around the energy gap of PC70BM are broadly distributed due to the low symmetry of the molecular structure. Consequently, the energy gap of PC70BM is smaller than that of C70 and PC60BM. The film deposition method affects the polarization energy between the PC70BM molecules, and thus affects the electronic structure of the films.

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JO - Organic Electronics

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Electronic structure and surface morphology of [6,6]-phenyl-C ₇₁-butyric acid methyl ester films

Abstract

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